douglas and benjn



FFCE

WM. DOUGLAS AND BENJN. DOUGLAS, OF MIDDLETOV7 CONNECTICUT.

PUMP.

`Specification of LettersPatent No..2,895, dated December 31, 1842.

To all` whom/tv may' concern Be it knownthat we, WILLIAM DOUGLAS and BENJAMIN `D0UGLAS,Y both of Middletown, in .,thecounty of Middlesex and State of Connecticut, havejointly invented a new and Improved Suction or Li-ftrPump, called \W. &;B. Douglas Revolving'St-and Pump and we do hereby declare that'thefollowing" is a full and:correctdescription thereof.

The' nature of our invention consists in constructing a pump in such a manner that it may be conveniently adapted to any part of a dwelling or otherplace where theroom is cramped, also so that the lower box or valve may be got at with much less difficulty than in the old and ordinary way, and in having the stand to which the brake is attached permanently secured by set screws uniting with a stirrup beneath a projection in the cylinder, and also the manner of securing the lower valve in its place, as will be hereinafter described.

To enable others skilled in the art to make and use our invention, we proceed to describe its construction and operation.

The pump is constructed in a neat and compact form, and adapted to the purposes of raising water in dwellings and other places, from wells, cisterns, &c.

In the accompanying drawings we have shown our improved pump of which-'f Figure 1, is a perspective .view of the whole. Figs. 2, 8 and 4 are sectional parts of the same.

We construct the pump of iron excepting the valve Vto the piston, andthe tube for soldering to the suction pipe which are of brass and the packings which are of leather. Any other metal may be used in the construction o this pump in place of the iron.

C, represents the cylinder which we make for a common and ordinary size pump 16 inches long with a bore 2% inches diameter,

other parts in due proportion to the same.

A, the stand by which the brake B, is suspended and held in its place is so made, as to form a cover to the pump cylinder C, and also to revolve around. Thus the brake B, may be shifted around to either side as the situation for the same may require, thus adapting the pump to any situation. This stand is secured to the cylinder C, by means of the two set screws K, K, which pass through the stand into the cross piece or stirrup N, drawing the same up again at the underside of the projection Z), withinthe upper end ofcylinder C. In putting the stand A, on to the cylinder inits place, the ends of the stirrup N, are passed through two slots or small openings seen in the projection .within the upper end of the cylinder C. Y

O, the piston rod passes through a slot in theibottompart of the `stand A, (which forms thecover tothe cylinder,) and connects at the upper end,with the brake B, and

at thelower end with the piston or bucket i at E,;Inaking:but two joints, one where it unites with the brake and the other where it unites with the piston. The piston is in two parts lE the bale and H the valve seat which screws into the bale and compresses the leather packing M, against the end of the bale E, thus securing the leather firmly in its place. This leather which forms the packing for the bucket or piston is crimped into the cylinder so that as itwears it will expand, thus working air tight until it is worn entirely out. V is thev valve in the piston which is brass. -This is taken out by screwing the piston apart.

el, is the end of the stem to the brass valve in piston. y e

P, represents the lower valve seat on which reststhe leather Y, which forms the lower valve.V I

L, is a piece of iron which is riveted on to the top of the valve lid to prevent it from being pressed into the hole beneath it.

X, is a rockerv on the lower valve lid, the

object of which is for the piston to strike` when vthe brake B is raised to its eXtreme height causing the lower valve to open and at the same time to strike the lower end of the brass valve in the piston at d, opening that and thus letting the water back and Y avoiding freezing.

Q, is a thread or screwon the outer edge ofV the lower valve P, which screws into the ioo brass tube T, for the purpose of soldering to the suction pipe.

I, is the thread in coupling D, which screws on to thread u.

T, the brass tube to which the suction pipe is soldered will swivel around in its place. Thus the pipe being soldered toit, it may be screwed up to its place without turning the pipe around, in order to make the joint air tight a ring of leather is inserted between the upper end of the brass tube T, and the lower end of the iron pipe P.

a, represents the screw holes in the flange at the lower end of the cylinder C, for the purpose of fastening the pump in its place.

S, is the spout or discharge pipe to the pump.

The advantage which this pump possesses over every other pump in use is its perfect adaptedness to any cramped place in a dwelling, as the brake may be shifted around and firmly secured at any point where it will be least in the way, also the ease and facility it possesses of getting at the lower box of valve in its place, las above described, all in Y connection with a pump.

Dated at Middletown the 15th day of March A. D. 1842.

WM. DOUGLAS.

BENJAMIN DOUGLAS.

Witnesses: JAMES E. WILooX, S. W. GRrswoLD. 

